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Why not just use a Nordic nRF51822 that comes with a full BLE stack, 32 arm processor, super low power. $2.50 per unit instead of using a separate micro and tra
by FigBug 13y ago
Why not just use a Nordic nRF51822 that comes with a full BLE stack, 32 arm processor, super low power. $2.50 per unit instead of using a separate micro and transceiver.
- acgourley 13y agoI guess because I didn't know those were that cheap - I'm out of date on this stuff and remember BT3.0 SoC's costing a lot more.
- krasin 13y agoIn order to use BLE stack in nRF51822, one will need to deal with their DRM for the S110 SoftDevice, or implement an open source BLE stack similar to what the article suggests.
- FigBug 13y agoWhat DRM is there? I thought the SoftDevice was just a binary blob? I'm currently in the prototyping phase of a product that uses the nRF5, I couldn't see any competitive advantage I would gain from developing my own stack considering the time investment it would take.
- krasin 13y agoHave you noticed that you had to enter a serial number in order to get your SDK?
- FigBug 13y agoYes, is the Sdk somehow locked to the processor serial? How does production work?
- foolsday 13y agoThe soft device is provided as a hex file and does not contain any DRM whatsoever.
- krasin 13y agoCan you post a download url to this hex file? Will the license allow you to do so?
- foolsday 13y agoThe website requires a Product Key (not serial number) before it allows you to download the installer (I would assume for licensing reasons). The installer also includes documentation and tools that make working with the soft device easier.
- krasin 13y agoThanks for the information. Yesterday, I have bought a few nRF51822, and will update this thread with my experience. While all early signs, including your words, indicate a good possibility that I will hit an unexpected problem due to the licensing scheme, the lack of the first hand experience does not let me be firm in my statements.